[xabuild] Remove xabuild, unused pipelines (dotnet#8720)

Context: 4b33a62

Remove `tools/xabuild` completely.  It is no longer required; use
`dotnet-local.*` instead (4b33a62).

Additionally, remove unneeded pipelines.  `build.groovy` and
`azure-pipelines-oss.yaml` (among others) haven't been executed in
*years*; there is no need to keep these files around.

.github/CODEOWNERS

@@ -64,4 +64,3 @@
 /tools/jit-times @jonpryor
 /tools/setup-windows @jonathanpeppers @jonpryor
 /tools/tmt @grendello
-/tools/xabuild @jonathanpeppers @jonpryor

Documentation/guides/profiling.md

@@ -517,47 +517,3 @@ in the build output window.
 
 [projectsystemtools]: https://marketplace.visualstudio.com/items?itemName=VisualStudioProductTeam.ProjectSystemTools
 [diagnostic]: https://docs.microsoft.com/xamarin/android/troubleshooting/troubleshooting#diagnostic-msbuild-output
-
-## Profiling MSBuild with the Mono Profiler
-
-Similiar to how you can [use the Mono Profiler](#profiling-managed-code)
-on Android, you can also profile MSBuild with `mono --profile`. With a
-local build of xamarin-android on macOS, you can run:
-
-    $ mono --profile=log:calls,alloc ./bin/Release/bin/xabuild.exe YourProject.csproj
-
-`xabuild.exe` is a tool for running MSBuild using your local
-xamarin-android working tree. I would also recommend using a `Release`
-build of Xamarin.Android when profiling.
-
-This will create an `output.mlpd` file in the current directory. To
-view its contents:
-
-    $ mprof-report output.mlpd
-
-This will display output such as:
-
-    Allocation summary
-         Bytes      Count  Average Type name
-     165520032      19363     8548 System.Byte[]
-      28813336     432701       66 System.String
-    
-    Method call summary
-    Total(ms) Self(ms)      Calls Method name
-      139368        1        703 (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
-      132472   132472        287 (wrapper managed-to-native) System.Threading.WaitHandle:Wait_internal (intptr*,int,bool,int)
-       71685        2          2 Microsoft.Build.BackEnd.RequestBuilder/DedicatedThreadsTaskScheduler:<InjectThread>b__6_0 ()
-
-> NOTE: I've hit an error in the past such as: `unhandled profiler
-> event: 0x6f at file offset: 3095192 + 60144 (len: 62655)`. Sometimes
-> I have just tried again, making sure I'm profiling a `Release` build.
-
-You can also get stacktrace information:
-
-    $ mprof-report --traces output.mlpd > output.txt
-
-I would recomment redirecting this output to a file, as it can
-generate text well over 100MB!
-
-See the [Mono documentation][mono_docs] for more details about the
-profiler.

Makefile

@@ -117,18 +117,6 @@ ifneq ($(PACKAGES),)
 APK_TESTS_PROP = /p:ApkTests='"$(PACKAGES)"'
 endif
 
-run-apk-tests:
-	_r=0 ; \
-	$(call MSBUILD_BINLOG,run-apk-tests,,Test) $(TEST_TARGETS) /t:RunApkTests /p:RunApkTestsTarget=RunPerformanceApkTests $(APK_TESTS_PROP) || _r=1 ; \
-	$(call MSBUILD_BINLOG,run-apk-tests,,Test) $(TEST_TARGETS) /t:RunApkTests $(APK_TESTS_PROP) || _r=1 ; \
-	exit $$_r
-
-run-performance-tests:
-	_r=0 ; \
-	$(call MSBUILD_BINLOG,run-apk-tests,,Test) $(TEST_TARGETS) /t:RunApkTests /p:RunApkTestsTarget=RunPerformanceApkTests $(APK_TESTS_PROP) || _r=1 ; \
-	$(call MSBUILD_BINLOG,run-performance-tests,,Test) $(TEST_TARGETS) /t:RunPerformanceTests || _r=1 ; \
-	exit $$_r
-
 list-nunit-tests:
 	$(MSBUILD) $(MSBUILD_FLAGS) $(TEST_TARGETS) /t:ListNUnitTests
 

before.Xamarin.Android.sln.targets

@@ -3,6 +3,5 @@
   <Import Project="$(MSBuildThisFileDirectory)build-tools\scripts\DotNet.targets" />
   <Import Project="$(MSBuildThisFileDirectory)build-tools\scripts\ImportExportDocs.targets" />
   <Import Project="$(MSBuildThisFileDirectory)build-tools\scripts\PrepareWindows.targets" Condition=" '$(OS)' == 'Windows_NT' " />
-  <Import Project="$(MSBuildThisFileDirectory)build-tools\scripts\RunTests.targets" />
   <Import Project="$(MSBuildThisFileDirectory)tests\api-compatibility\api-compatibility.targets" />
 </Project>